From d26a66a2b310100bac47a57da8b92978a22cb785 Mon Sep 17 00:00:00 2001
From: Kerkko Pelttari <kerk.pelt@gmail.com>
Date: Thu, 2 Apr 2020 17:56:14 +0300
Subject: [PATCH] Check for bash version in vim-patch.sh

---
 scripts/vim-patch.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/vim-patch.sh b/scripts/vim-patch.sh
index f9726e8a87..ba0e7f62dd 100755
--- a/scripts/vim-patch.sh
+++ b/scripts/vim-patch.sh
@@ -5,6 +5,12 @@ set -u
 # Use privileged mode, which e.g. skips using CDPATH.
 set -p
 
+# Ensure that the user has a bash that supports -A
+if [ "${BASH_VERSINFO[0]}" -lt 4  ]; then
+  echo "Update your bash version to one that supports -A syntax (>3)"
+  exit 1
+fi
+
 readonly NVIM_SOURCE_DIR="${NVIM_SOURCE_DIR:-$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)}"
 readonly VIM_SOURCE_DIR_DEFAULT="${NVIM_SOURCE_DIR}/.vim-src"
 readonly VIM_SOURCE_DIR="${VIM_SOURCE_DIR:-${VIM_SOURCE_DIR_DEFAULT}}"